Another dealer initiated Problem!!

[Brid]

I thought the LR dealer had finally fixed up my central locking & disabled the engine immobilizer (after it permanently immobilized itself up the bush). Anyway it all seemed fine until the day after I got it back, I drove over some railway tracks and...
...the hazzard lights came on!

It happened only once before when I bottomed out the front suspension heavily on a washout. I suspect it might be some sort of safety feature that comes on when the vehicle is involved in a crash. You have to turn the ignition off, pause & turn it on again to cancel.

Anyway now it happens all the time on washboard corrugations, etc. Just got back from Flinders Ranges, Strzleki, Camerons Corner & SA/NSW dingo fence & it must have happened 70-80 times...and only once before the dealer fixed things.

Anyway...does anyone have any ideas how to turn this "feature" off? I did notice that the remote key is a bit more sensitive than it was before, so there may be some relationship here.

Cheers
Brid

[Blknight.aus]

its the inertia switch.

[Brid]

Thanks Dave

That makes sense. Do you know where it's located? And is it easy to remove...or is it all software related?

[CraigE]

The inertia switch is on the bulkhead, looks like a big black round rubber button. You will probablly find it is faulty and needs replacing as it sounds like it is not totally activating as normally if activated you have to reset it, so there may be a problem. It is there to cut the fuel in the event of a big hit or accident.
I know I did one with a D2 I bought as a wrecked roll over, owner reckons it was buggered and could not start it. Reset the button and away she went.

[Blknight.aus]

consult your users manual...

in the deefers its typically on the firewall inboard of the clutch tower. For the life of me I cant remember where it is in a disco.

you can disconnect it but dont. also be warey that if you have a turbo timer some setups will not turn the engine off just initiate the hazards, others will kick it over onto the turbo timer as well as the hazards so the hazards will come on and then the engine will shutdown at whatever the turbo timer time is set to and others function as advertised and if the switch is tripped kill the engine and activate the hazards.

[Brid]

Thanks Craig

It doesn't seem to cut the fuel at all...even the first time it came on after a heavy bottom out. All it does is activate the hazzards... and you can keep driving as long as you like, before reseting it. Do you think it's the same device?

Brid

[dmdigital]

Yes !

[scarry]

For the life of me I cant remember where it is in a disco

D2,it is on firewall,left hand side of vehicle in engine bay.

[pc3]

I thought the LR dealer had finally fixed up my central locking & disabled the engine immobilizer (after it permanently immobilized itself up the bush). Anyway it all seemed fine until the day after I got it back, I drove over some railway tracks and...
...the hazzard lights came on!

It happened only once before when I bottomed out the front suspension heavily on a washout. I suspect it might be some sort of safety feature that comes on when the vehicle is involved in a crash. You have to turn the ignition off, pause & turn it on again to cancel.

Anyway now it happens all the time on washboard corrugations, etc. Just got back from Flinders Ranges, Strzleki, Camerons Corner & SA/NSW dingo fence & it must have happened 70-80 times...and only once before the dealer fixed things.

Anyway...does anyone have any ideas how to turn this "feature" off? I did notice that the remote key is a bit more sensitive than it was before, so there may be some relationship here.

Cheers
Brid

Brid I am very interested in how to "permantly switch off the imobilizer" and what impact this has on warranty etc. ?


cheers pc3

[spudboy]

Thanks Craig

It doesn't seem to cut the fuel at all...even the first time it came on after a heavy bottom out. All it does is activate the hazzards... and you can keep driving as long as you like, before reseting it. Do you think it's the same device?

Brid


It thinks you are having an accident, so it unlocks the doors (if locked) and puts on the hazard lights. Very annoying.

I drove most of the Birdsville Track with my hazard lights on, as I got sick of stopping, turning off the car, and re-starting.....

[Brid]

G'day pc3.

I don't know how the dealer did it...I had to tell them that it could be done, as others on this forum have had theirs switched off when going bush, and back on again when home.

The dealers were pretty happy to switch mine off and leave it that way, as they, combined with LR tech advice, could not rectify it. I'm happy too, as I don't want to be bailed up in remote areas again! I think they replaced the immobilizer module 3 times to no avail. I suspect the experts with Nanocoms might be able to advise how it's done???

[pc3]

G'day pc3.

I don't know how the dealer did it...I had to tell them that it could be done, as others on this forum have had theirs switched off when going bush, and back on again when home.

The dealers were pretty happy to switch mine off and leave it that way, as they, combined with LR tech advice, could not rectify it. I'm happy too, as I don't want to be bailed up in remote areas again! I think they replaced the immobilizer module 3 times to no avail. I suspect the experts with Nanocoms might be able to advise how it's done???

Thanks Brid,

I want mine turned off and never switched on again !! Waste of time IMHO.......what normal perosn would want to steal a defer :D

[Brid]

Just accessed the Puma manual & it states that the inertia switch is incorporated in the internals of the anti theft module.

[dullbird]

G'day pc3.

I don't know how the dealer did it...I had to tell them that it could be done, as others on this forum have had theirs switched off when going bush, and back on again when home.

The dealers were pretty happy to switch mine off and leave it that way, as they, combined with LR tech advice, could not rectify it. I'm happy too, as I don't want to be bailed up in remote areas again! I think they replaced the
immobilizer module 3 times to no avail. I suspect the experts with Nanocoms might be able to advise how it's done???

That obvioulsy means the problem is else where but they were unable to think outside the box...

I wonder if a bad earth can set it off..bad earths seem to be the bane of a lot of cars when they get problems

[dmdigital]

The anti-theft module is a Lucas10AS same as on the Disco 1's and Td5 Defenders. It controls the hazard and interior lights and can be enabled or disabled from passive immobilising, volumetric sensors and can also control central locking. As mentioned it also has an inertia switch but this is to control the cabin access and not the engine.

The inertia fuel shutoff (IFS) switch on a Tdi or Td5 is on the firewall, the Puma does have an IFS too but so far I haven't been able to find out where it is or whether it is built into something else.

[the_chisholm]

Ahh finally,

This explains a few things that have happened recently. I have hit 2 Roos in the last 2 weeks, and after each incident the hazards have come on.... i couldnt work out why.

Thanks alot for this guys, you have put my mind at rest.

[landroverwa]

Hi Brid,
I had a similar problem with my 2008 Puma. It got to the stage where the flashers would activate at random on the bitumen...no bump required!

Indicator warning lights only activated when flashing occurred - no red triangle hazard light or trailer indicator light on dash as when the hazard switch is pressed.

You are on the right track with the Puma manual, the inertia switch is incorporated in the anti-theft module and as per "dmdigital" in the Puma it is a Lucas 10AS (A-larm & S-ecurity) unit. It is mounted on the firewall behind the fuses panel and can be seen by removing the radio speaker to right of fuses. The LR part no. is YWC500640.

As per "spudboy", it thinks you have had a crash and 'unlocks' the doors (you might hear the central lock unit activate noise when the flashers come on) and activates the hazard lights.

With engine running, it was found that by reaching in through the speaker hole and giving the 10AS module a firm tap in the upper R/H quadrant with the butt of a screwdriver that the flashers would activate.

I was told by the dealer that these modules cannot be serviced and it was replaced under warranty ex UK.
Good luck,
landroverwa

[3toes]

.......what normal person would want to steal a defer :D

Think you have confirmed a few of my suspicions in regard to the locals in this country.

As a requirement of renewal of the insurance on his Defenders my neighbour has been forced by the insurance company to install security posts in his drive which raise and lower to allow access.

Seems this anti theft measure is due to the very high theft rate of Defenders in the UK.

[frantic]

3toes defenders are very low volume in Oz so the market for the parts and upgrades is tiny compared to the U.K. But they sell far more landcruisers and patrols so they get stolen and stripped or used in ram raids a great deal more.

[gconran]

Thanks Brid,

I want mine turned off and never switched on again !! Waste of time IMHO.......what normal perosn would want to steal a defer :D


When you interrogate the ECU with the computer thing in the dealer there is an option for Immobiliser and Alarm. Its as simple as going in there and turning everything off. My mechanic let me stand over his shoulder as he did it to see what was going on.
Also allowed me to obtain the emergency access code, so if I lose my plip key or anything else happens I can unimmobilise it with a few turns of the key.

If you want it done should take you no more than 20 minutes in a dealer. No doubt they wont be as nice as mine tho and they will actually charge you!

[boolyb]

Hi folks regarding alarm ecu faults with post 2007 defenders,
these 10as modules have been causing a lot of problems i have changed a lot of these for immobiliser faults, on mine i have switched off passive immobiliser and fitted an aftermarket immobiliser and informed insurance i have fitted it,
from experience a lot of the probs ive seen with bump related issues
ie hazards and door locks unlocking have been caused by loose 10as unit ( one screw is a bit awkward and is often loose or left out by lazy techs when replacing ecu ) pop out rh speaker you can access lh screw with a t20 torx and long extension past through rhs of column.
worth a check, hope this helps, modules are crap iam looking into bypassing altogether.